[gjs/wip/xulrunner-1.9.3-rebase5: 14/26] importer: Handle JSVAL_NULL in ENUMERATE_NEXT

[Colin Walters <walters src gnome org>]

commit 654f89c192c8053ceac21ba9b132f3915c0e0c7a
Author: Colin Walters <walters verbum org>
Date:   Wed Sep 22 18:24:24 2010 -0400

    importer: Handle JSVAL_NULL in ENUMERATE_NEXT
    
    This occurs in my newer XULRunner port; not entirely sure
    why, but anyways it should be a safe change.

 gjs/importer.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gjs/importer.c b/gjs/importer.c
index f2d1bd1..90972dd 100644
--- a/gjs/importer.c
+++ b/gjs/importer.c
@@ -859,6 +859,9 @@ importer_new_enumerate(JSContext  *context,
             return JS_FALSE;
         }
 
+        if (*state_p == JSVAL_NULL)
+            break;
+
         iter = JSVAL_TO_PRIVATE(*state_p);
 
         if (iter->index < iter->elements->len) {